While catching a movie in Hollywood yesterday, the singer wore a cute floral onesie, ballet flats and wayfarer shades. The summer ensemble was a great way to beat the heat, but the airy fabric and draping neckline threatened to expose Katy at any moment. The newly-single star (who's rumored to be dating John Mayer) even had to hold up the top to avoid any wardrobe malfunctions.

It seems that not only playsuits, but also exposed cleavage have become the season's wardrobe staples for many celebrities (not to mention exposed bras). While the 27-year-old can look gorgeous in just about anything, do you think this type of look is appropriate for every day? Would you rock the outfit? Check out the photos and tell us what you think.